Chords Structure

This is a 2.24 minute video response from Mark Lincoln on Nov 1st, 2008

Question:

"Scopexs asks, "I have found chords in my chord book that can be identically fingered...C6 and the Am7. Both chords give the option of playing it with the D string fingered at the 2nd fret and the B string fingered at the 1st fret while the other strings are played open. What is confusing is why are the two chord structures the same and can be fingered the same yet are called by two different names. This is confusing when learning chords. Is there an easy explanation as to why two chord structures would be called by two different names. Thanks""